JPS63206402A - Production of metallic powder or the like - Google Patents
Production of metallic powder or the likeInfo
- Publication number
- JPS63206402A JPS63206402A JP62039950A JP3995087A JPS63206402A JP S63206402 A JPS63206402 A JP S63206402A JP 62039950 A JP62039950 A JP 62039950A JP 3995087 A JP3995087 A JP 3995087A JP S63206402 A JPS63206402 A JP S63206402A
- Authority
- JP
- Japan
- Prior art keywords
- metal
- powder
- coating
- forming
- producing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000000843 powder Substances 0.000 title claims abstract description 66
- 238000004519 manufacturing process Methods 0.000 title claims description 10
- 229910052751 metal Inorganic materials 0.000 claims abstract description 84
- 239000002184 metal Substances 0.000 claims abstract description 80
- 238000000576 coating method Methods 0.000 claims abstract description 27
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 25
- 239000000956 alloy Substances 0.000 claims abstract description 25
- 239000011248 coating agent Substances 0.000 claims abstract description 10
- 238000009792 diffusion process Methods 0.000 claims abstract description 9
- 238000000034 method Methods 0.000 claims description 26
- 150000002739 metals Chemical class 0.000 claims description 12
- 229910001092 metal group alloy Inorganic materials 0.000 claims description 5
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 claims description 4
- -1 ferrous metal compounds Chemical class 0.000 claims description 4
- 229910044991 metal oxide Inorganic materials 0.000 claims description 4
- 229910052761 rare earth metal Inorganic materials 0.000 claims description 4
- 150000002910 rare earth metals Chemical class 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000000919 ceramic Substances 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 2
- 239000011195 cermet Substances 0.000 claims description 2
- VNNRSPGTAMTISX-UHFFFAOYSA-N chromium nickel Chemical compound [Cr].[Ni] VNNRSPGTAMTISX-UHFFFAOYSA-N 0.000 claims description 2
- 229910052802 copper Inorganic materials 0.000 claims description 2
- 238000007772 electroless plating Methods 0.000 claims description 2
- 238000009713 electroplating Methods 0.000 claims description 2
- 150000001247 metal acetylides Chemical class 0.000 claims description 2
- 150000002736 metal compounds Chemical class 0.000 claims description 2
- 150000004706 metal oxides Chemical class 0.000 claims description 2
- 229910052750 molybdenum Inorganic materials 0.000 claims description 2
- 229910001120 nichrome Inorganic materials 0.000 claims description 2
- 229910052763 palladium Inorganic materials 0.000 claims description 2
- 238000005240 physical vapour deposition Methods 0.000 claims description 2
- 229910052707 ruthenium Inorganic materials 0.000 claims description 2
- 238000001771 vacuum deposition Methods 0.000 claims description 2
- 229910052725 zinc Inorganic materials 0.000 claims description 2
- 229910003266 NiCo Inorganic materials 0.000 claims 1
- 229910052799 carbon Inorganic materials 0.000 claims 1
- 238000005229 chemical vapour deposition Methods 0.000 claims 1
- 229910052804 chromium Inorganic materials 0.000 claims 1
- 238000009689 gas atomisation Methods 0.000 claims 1
- 229910052737 gold Inorganic materials 0.000 claims 1
- 229910052738 indium Inorganic materials 0.000 claims 1
- 229910052742 iron Inorganic materials 0.000 claims 1
- 229910052759 nickel Inorganic materials 0.000 claims 1
- 230000001737 promoting effect Effects 0.000 claims 1
- 229910052709 silver Inorganic materials 0.000 claims 1
- 238000004544 sputter deposition Methods 0.000 claims 1
- 229910052718 tin Inorganic materials 0.000 claims 1
- 229910052721 tungsten Inorganic materials 0.000 claims 1
- 238000009692 water atomization Methods 0.000 claims 1
- 239000011261 inert gas Substances 0.000 abstract description 5
- 238000005275 alloying Methods 0.000 abstract 2
- 239000011230 binding agent Substances 0.000 description 8
- 238000001746 injection moulding Methods 0.000 description 6
- 238000005245 sintering Methods 0.000 description 6
- 239000010408 film Substances 0.000 description 5
- 239000000463 material Substances 0.000 description 3
- 239000002131 composite material Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052793 cadmium Inorganic materials 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 229910000765 intermetallic Inorganic materials 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 150000002843 nonmetals Chemical class 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 229920005672 polyolefin resin Polymers 0.000 description 1
- 239000012255 powdered metal Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 239000002436 steel type Substances 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 239000011882 ultra-fine particle Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Manufacture Of Metal Powder And Suspensions Thereof (AREA)
- Powder Metallurgy (AREA)
- Chemical Vapour Deposition (AREA)
Abstract
Description
【発明の詳細な説明】
「産業上の利用分野」
本発明は主に射出成形に用いる金属等のパウダーの製造
方法に関する。DETAILED DESCRIPTION OF THE INVENTION "Field of Industrial Application" The present invention mainly relates to a method for producing powder such as metal used in injection molding.
「従来の技術」
従来、粉体ブレスや射出成形により焼結合金製品を作る
場合、金属パウダーを用いて行なうが、金属パウダーを
構成している金属がそれぞれ親和力の強い材料でなけれ
ば通常の不活性ガス炉あるいは真空炉内での焼結後の結
合力が弱く、金属間化合物の生成や合金拡散接合力が不
足して、割れやすいため射出成形により焼結合金製品を
作ることのできる金属材料が限られ、利用分野が少ない
という欠点があっ
た。"Conventional technology" Conventionally, when making sintered metal products by powder pressing or injection molding, metal powder is used, but unless the metals that make up the metal powder have strong compatibility with each other, normal defects may occur. A metal material that can be made into sintered alloy products by injection molding because the bond strength after sintering in an active gas furnace or vacuum furnace is weak, and the formation of intermetallic compounds and alloy diffusion bonding strength are insufficient, making it easy to break. The drawback was that there were limited fields of application.
「本発明の目的」
本発明は以上のような従来の欠点に鑑み、どんな材質の
金属等のパウダーでも、通常の不活性ガス炉あるいは真
空炉内での焼結で強固に結合して、割れたりすることが
なく、従来不可能とされていた射出成形による焼結特殊
！１４製品、焼結超硬製品、サーメット合金製品等を作
ることができる金属等のパウダーの製造方法を得るにあ
る。``Object of the present invention'' In view of the above-mentioned drawbacks of the conventional art, the present invention has been developed by sintering powders of any material, such as metals, in a normal inert gas furnace or vacuum furnace to firmly bond them and prevent them from cracking. Special sintering by injection molding, which was previously considered impossible! The purpose of the present invention is to obtain a method for producing powder of metal, etc., which can make 14 products, sintered carbide products, cermet alloy products, etc.
［本発明の目的を達成するための手段Ｊ本発明は金属等
を粉状に形成して金属等のパウダー本体を形成する金属
等のパウダー本体形成工程と、この金属等のパウダー本
体形成工程で形成された金属等のパウダー本体の表面に
乾式コート法あるいは湿式コート法によって合金拡散接
合を強く早く促進する親和力の強い金属をコートするコ
ート工程とを含むことを特徴としている。[Means for Achieving the Objects of the Invention J The present invention includes a process for forming a powder body of metal, etc., in which a metal, etc. is formed into powder to form a powder body of metal, etc., and a process of forming a powder body of metal, etc. It is characterized by including a coating step of coating the surface of the formed powder body of metal or the like with a metal having a strong affinity to strongly and quickly promote alloy diffusion bonding by a dry coating method or a wet coating method.
「本発明の実施例」
以下、図面に示す実施例により、本発明の詳細な説明す
る。"Embodiments of the present invention" The present invention will be described in detail below with reference to embodiments shown in the drawings.
第１図ないし第３図の実施例において、１は金属等を粉
状に形成して金属等のパウダー本体２を形成する金属等
のパウダー本体形成工程で、この金属等のパウダー本体
形成工程１で使用される金属等は各種の金属元素、各種
の非鉄金属元素、金属合金、特殊鋼、非鉄金属酸化物、
非鉄金属合金、非鉄金属化合物、金属炭化物、金属酸化
物、金属化合物、アモルファス金属、合金アモルファス
金属、稀土類金属、稀土類金属合金、サーメット、超硬
合金、セラミックス等で、これらの金属等は溶解炉３で
溶解された後、高圧ガスあるいは水アトマイズ装置４あ
るいは金属超微粒子袋＠（大亜真空技研株式会社製）等
を用いて５００ミクロン以下の粉状の金属等のパウダー
本体２に形成される。In the embodiments shown in FIGS. 1 to 3, 1 is a process for forming a powder body 2 of metal or the like by forming metal or the like into powder; The metals used include various metal elements, various non-ferrous metal elements, metal alloys, special steel, non-ferrous metal oxides,
Non-ferrous metal alloys, non-ferrous metal compounds, metal carbides, metal oxides, metal compounds, amorphous metals, alloy amorphous metals, rare earth metals, rare earth metal alloys, cermets, cemented carbide, ceramics, etc. These metals can be melted. After being melted in the furnace 3, it is formed into a powder body 2 of powdered metal or the like of 500 microns or less using a high-pressure gas or water atomizer 4 or a metal ultrafine particle bag @ (manufactured by Daia Shinku Giken Co., Ltd.). Ru.
５は前記金属等のパウダー本体形成工程１で形成された
金属等のパウダー本体２の表面に乾式コート法あるいは
湿式コート法によって親和力の強い金属をコートして金
属等のパウダー６を形成するコート工程で、このコート
工程５によって金属等のパウダー本体６の表面にコート
被膜７された親和力の強い金属は結合される金属等のパ
ウダー本体２．２の材質によってＯｒ、Ｆｅ、Ｃｏ１Ｎ
ｉ、Ｃｕ、Ｚｎ、Ａｌ、Ｍｏ、Ｒｕ、Ｐｄ、Ｃｄ。5 is a coating step in which the surface of the powder body 2 made of metal or the like formed in step 1 of forming the powder body of metal or the like is coated with a metal having strong affinity by a dry coating method or a wet coating method to form a powder 6 of metal or the like. The metal with strong affinity coated 7 on the surface of the powder body 6 such as metal in this coating step 5 is Or, Fe, Co1N depending on the material of the powder body 2.2 such as metal to be bonded.
i, Cu, Zn, Al, Mo, Ru, Pd, Cd.
Ｉｎ、５ｎＳＷ、ＡＱ、Ａｕ、ＮｉＣｒ、ＮｉＣ０等が
鋼種別、用途別に選択的に使用され、１００オングスト
ロームから数ミクロンの膜厚で金属等のパウダー本体２
の表面にコートされている。In, 5nSW, AQ, Au, NiCr, NiC0, etc. are selectively used depending on the steel type and application, and the powder body 2 of metal etc. is coated with a film thickness of 100 angstroms to several microns.
coated on the surface.
前記コート工程５で用いる乾式コート法はＰＶＤ法、Ｃ
ＶＤ法、真空蒸着法、スパッタリンク法等であり、湿式
コート法は無電解メッキ法あるいは電解メッキ法等であ
る。The dry coating method used in the coating step 5 is PVD method, C
The VD method, vacuum evaporation method, sputter link method, etc. are used, and the wet coating method is an electroless plating method, an electrolytic plating method, etc.
上記方法によって製造された金属等のパウダー６は、第
１図に示すように所定Ｑのオレフィン系樹脂や高分子等
のバインダー８を混合するバインダー混合工程９を経た
後、射出成形装置１０で所定形状の成形品１１を成形す
る成形品形成工程１２を行なう。As shown in FIG. 1, the powder 6 of metal or the like produced by the above method undergoes a binder mixing step 9 in which a binder 8 such as an olefin resin or polymer of a predetermined amount is mixed, and then an injection molding device 10 A molded product forming step 12 is performed in which a shaped molded product 11 is molded.
しかる後、成形品１１よりバインダー８を除去する脱バ
インダー除去工程１３を経た後、焼結を行なう焼結工程
１４を行なって焼結成形製品１５を作ることができる。Thereafter, a binder removal step 13 is performed to remove the binder 8 from the molded product 11, and then a sintering step 14 is performed to perform sintering to produce a sintered molded product 15.
なお、前述の方法で製造された金属等のパウダー６を用
いることにより、焼結工程１４時の合金拡散時に残留変
質樹脂バインダーが金属等のパウダー本体２に悪影訝を
およぼすのを超薄膜のコート被膜７によって防止できる
。By using the metal powder 6 manufactured by the method described above, an ultra-thin film can be used to prevent the residual deteriorated resin binder from exerting a negative influence on the metal powder body 2 during the alloy diffusion in the sintering process 14. This can be prevented by the coating film 7.
このため、現在の技術では不可能な乾燥環境の条件を作
りだすことなく、通常の不活性ガス炉あるいは真空炉内
で円滑に金属合金拡散を行なわせて焼結金属製品を製造
することができる。Therefore, sintered metal products can be manufactured by smoothly diffusing the metal alloy in a normal inert gas furnace or vacuum furnace without creating dry environment conditions that are impossible with current technology.
また、金属等のパウダー本体２．２同志の親和力が非常
に弱い場合（異種複合合金）には、コート工程５で金属
等のパウダー本体２．２にコートスするコート被膜７．
７を厚膜にした金属等のパウダー６．６を用いることに
より、金属等のパウダー２．２の特性を損うことなく、
温存した状態でコート被膜７．７間の合金拡散によって
通常の不活性ガス炉あるいは真空炉内で異種複合の焼結
合金製品を製造することができる。In addition, if the affinity between the powder bodies 2.2 made of metal or the like is very weak (different composite alloys), a coat film 7.
By using powder 6.6 made of metal etc. with a thick film of 7, without impairing the characteristics of powder 2.2 such as metal,
In the preserved state, a heterogeneous composite sintered alloy product can be produced in a conventional inert gas furnace or vacuum furnace by alloy diffusion between the coats 7.7.
なお、焼結合金を製造する場合、金属等のパウダー本体
２が金属元素あるいは非鉄金属元素の場合には複数種つ
金属等のパウダー６を混合して用いて焼結合金を製造し
、各種の金属、非金属、セラミックス等の場合の金属等
のパウダー６を１種類あるいは数種類を用いて焼結合金
を製造する。In addition, when manufacturing a sintered alloy, if the powder body 2 of metal etc. is a metal element or a non-ferrous metal element, the sintered alloy is manufactured using a mixture of powders 6 of multiple types of metals etc. A sintered alloy is manufactured using one or several types of powders 6 of metals, non-metals, ceramics, etc.
「本発明の効果」
以上の説明から明らかなように、本発明にあっては次に
列挙する効果がある。"Effects of the Present Invention" As is clear from the above description, the present invention has the following effects.
（１）金属等を粉状に形成して金属等のパウダー本体を
形成する金属等のパウダー本体形成工程と、この金属等
のパウダー本体形成工程で形成された金属等のパウダー
本体の表面に乾式コート法あるいは湿式コート法によっ
て合金拡散接合を強く早く促進する親和力の強い金属を
コートする］−ト工程とからなっているので、通常の不
活性ガス炉あるいは真空炉内で合金拡散して強固に結合
して、削れずらい焼結合金を容易に製造することのでき
る金属等のパウダーを製造することができる。(1) A metal powder body forming process in which a metal powder body is formed by forming a metal powder body, and a dry process is applied to the surface of the metal powder body formed in this metal powder body forming process. The coating method or wet coating method is used to coat a metal with a strong affinity to strongly and quickly promote alloy diffusion bonding. Powders of metals and the like can be produced by combining them to easily produce a sintered alloy that is hard to scrape.
（２）前記（１）によって、各種の焼結合金を容易に製
造することができるので、焼結合金の利用分野を拡大す
ることができる。(2) According to (1) above, various sintered alloys can be easily produced, so the fields of use of sintered alloys can be expanded.
（３）前記（１）によって、高価な設備が不用なので、
コストの低減を図ることができる。(3) Due to (1) above, expensive equipment is not required,
Cost reduction can be achieved.
〈４）前記（１）によって、どんな材質の金属等のパウ
ダー本体でも合金拡散によって強固に結合した焼結合金
にでき、新たな焼結合金を作りだすことができる。(4) According to the above (1), a powder body made of any material such as metal can be made into a strongly bonded sintered alloy by alloy diffusion, and a new sintered alloy can be created.
第１図は本発明の一実施例を示す工程図、第２図は金属
等のパウダー本体の拡大断面図１、第３図は金属等のパ
ウダーの拡大断面図である。
１：金属等のパウダー本体形成工程、
２：金属等のパウダー本体、
３：溶解炉、 ４：アトマイズ装置、５：コー
ト工程、 ６：金属等のパウダー、７：コート被膜
、 ８：バインダー、９：バインダー混合工程、
１０：射出成形装置、 １１：成形品、１２：成形品
形成工程、
１３：脱バインダー除去工程、
１４：焼結工程、 １５：焼結成形製品。FIG. 1 is a process diagram showing an embodiment of the present invention, FIG. 2 is an enlarged sectional view 1 of a main body of powder such as metal, and FIG. 3 is an enlarged sectional view of powder such as metal. 1: Process of forming powder body of metal etc., 2: Powder body of metal etc., 3: Melting furnace, 4: Atomizing device, 5: Coating process, 6: Powder of metal etc., 7: Coat film, 8: Binder, 9 : Binder mixing process, 10: Injection molding device, 11: Molded product, 12: Molded product forming process, 13: Binder removal process, 14: Sintering process, 15: Sintered molded product.
Claims (1)
成する金属等のパウダー本体形成工程と、この金属等の
パウダー本体形成工程で形成された金属等のパウダー本
体の表面に乾式コート法あるいは湿式コート法によって
合金拡散接合を強く早く促進する親和力の強い金属をコ
ートするコート工程とを含むことを特徴とする金属等の
パウダーの製造方法。 ２）金属等のパウダー形成工程で形成する金属等のパウ
ダー本体は５００ミクロン以下の大きさの粉状に形成さ
れていることを特徴とする特許請求の範囲第１項記載の
金属等のパウダーの製造方法。 ３）金属等のパウダー形成工程は溶解金属を高圧ガスあ
るいは水アトマイズ装置を用いて金属等のパウダー本体
を形成することを特徴とする特許請求の範囲第１項また
は第２項記載の金属等のパウダーの製造方法。 ４）金属等のパウダー形成工程で使用する金属等は各種
の金属元素、金属合金、特殊鋼、各種の非鉄金属元素、
非鉄金属酸化物、非鉄金属合金、非鉄金属化合物、金属
炭化物、金属酸化物、金属化合物、アモルファス金属、
合金アモルファス金属、稀土類金属、稀土類金属合金、
サーメット、超硬合金、セラミックス等であることを特
徴とする特許請求の範囲第１項ないし第３項いずれかに
記載の金属等のパウダーの製造方法。 ５）コート工程はＰＶＤ法、ＣＶＤ法、真空蒸着法、ス
パッタリング法等の乾式コート法あるいは無電解メッキ
法、電解メッキ法等の湿式コート法であることを特徴と
する特許請求の範囲第１項ないし第４項いずれかに記載
の金属等のパウダーの製造方法。 ６）コート工程は金属等のパウダー本体の表面に１００
オングストロームから数ミクロンの膜厚にコートするこ
とを特徴とする特許請求の範囲第１項ないし第５項いず
れかに記載の金属等のパウダーの製造方法。 ７）コート工程でコートする親和力の強い金属は結合さ
れる金属等のパウダー本体の材質によつてＣｒ、Ｆｅ、
Ｃｏ、Ｎｉ、Ｃｕ、Ｚｎ、Ａｌ、Ｍｏ、Ｒｕ、Ｐｄ、Ｃ
ｄ、Ｉｎ、Ｓｎ、Ｗ、Ａｇ、Ａｕ、ＮｉＣｒ、ＮｉＣｏ
等が鋼種別、用途別に選択的に使用されることを特徴と
する特許請求の範囲第１項ないし第６項いずれかに記載
の金属等のパウダーの製造方法。[Claims] 1) A process for forming a powder body of metal, etc., by forming a powder body of metal, etc. into powder, and a powder of metal, etc. formed in the process of forming a powder body of metal, etc. 1. A method for producing powder of metal, etc., comprising a coating step of coating the surface of a main body with a metal having strong affinity for strongly and quickly promoting alloy diffusion bonding by a dry coating method or a wet coating method. 2) The main body of the powder of metal, etc., formed in the process of forming the powder of metal, etc., is formed into a powder having a size of 500 microns or less. Production method. 3) In the step of forming powder of metal, etc., a main body of powder of metal, etc. is formed by using a high-pressure gas or water atomization device for the molten metal. How to make powder. 4) The metals used in the metal powder forming process include various metal elements, metal alloys, special steel, various non-ferrous metal elements,
Non-ferrous metal oxides, non-ferrous metal alloys, non-ferrous metal compounds, metal carbides, metal oxides, metal compounds, amorphous metals,
Alloy amorphous metals, rare earth metals, rare earth metal alloys,
A method for producing a powder of metal or the like according to any one of claims 1 to 3, characterized in that the powder is cermet, cemented carbide, ceramics, or the like. 5) The coating process is a dry coating method such as a PVD method, a CVD method, a vacuum evaporation method, a sputtering method, or a wet coating method such as an electroless plating method or an electrolytic plating method. A method for producing a powder of metal or the like according to any one of items 4 to 4. 6) The coating process is to coat the surface of the powder body such as metal with 100%
6. A method for producing powder of metal or the like according to any one of claims 1 to 5, characterized in that the coating is performed to a film thickness of angstroms to several microns. 7) The metal with strong affinity to be coated in the coating process may be Cr, Fe,
Co, Ni, Cu, Zn, Al, Mo, Ru, Pd, C
d, In, Sn, W, Ag, Au, NiCr, NiCo
7. A method for producing a powder of metal, etc. according to any one of claims 1 to 6, characterized in that the powder is selectively used depending on the type of steel and the application.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62039950A JPS63206402A (en) | 1987-02-23 | 1987-02-23 | Production of metallic powder or the like |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62039950A JPS63206402A (en) | 1987-02-23 | 1987-02-23 | Production of metallic powder or the like |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63206402A true JPS63206402A (en) | 1988-08-25 |
Family
ID=12567242
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62039950A Pending JPS63206402A (en) | 1987-02-23 | 1987-02-23 | Production of metallic powder or the like |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63206402A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5749938A (en) * | 1993-02-06 | 1998-05-12 | Fhe Technology Limited | Production of powder |
| CN104174854A (en) * | 2014-07-14 | 2014-12-03 | 昆山安泰美科金属材料有限公司 | Method for manufacturing miniature tungsten-based alloy part |
| CN104759857A (en) * | 2015-04-28 | 2015-07-08 | 西北有色金属研究院 | Method for preparing metal porous box through powder metallurgy |
| US9334550B2 (en) | 2009-10-14 | 2016-05-10 | Anglo Platinum Marketing Limited | Method of controlling the carbon or oxygen content of a powder injection |
| JP2021030210A (en) * | 2019-08-27 | 2021-03-01 | 張偉萍 | Rotary type spray granulation machine for hard metal |
-
1987
- 1987-02-23 JP JP62039950A patent/JPS63206402A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5749938A (en) * | 1993-02-06 | 1998-05-12 | Fhe Technology Limited | Production of powder |
| US6059853A (en) * | 1993-02-06 | 2000-05-09 | Behr South Africa (Pty) Ltd. | Production of powder |
| US9334550B2 (en) | 2009-10-14 | 2016-05-10 | Anglo Platinum Marketing Limited | Method of controlling the carbon or oxygen content of a powder injection |
| CN104174854A (en) * | 2014-07-14 | 2014-12-03 | 昆山安泰美科金属材料有限公司 | Method for manufacturing miniature tungsten-based alloy part |
| CN104174854B (en) * | 2014-07-14 | 2016-08-24 | 昆山安泰美科金属材料有限公司 | A kind of method preparing miniature tungsten-bast alloy part |
| CN104759857A (en) * | 2015-04-28 | 2015-07-08 | 西北有色金属研究院 | Method for preparing metal porous box through powder metallurgy |
| JP2021030210A (en) * | 2019-08-27 | 2021-03-01 | 張偉萍 | Rotary type spray granulation machine for hard metal |
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